Discover unparalleled luxury at 775 Kalmia Ave, a 15,000 sq ft modern masterpiece nestled on 1.3 acres in Boulder's most coveted location. Crafted by Surround Architecture and brought to life by Tom Stanko, this residence redefines refined living. A striking glass-encased front door leads to a grand open space where soaring 25ft tongue-and-groove ceilings meet walls of panoramic windows, bathing oak plank floors in natural light. Commanding dry-stacked limestone fireplaces anchor the space with timeless elegance. The chef's dream kitchen dazzles with dual islands (steel & quartz), a cozy walnut breakfast nook, a cleverly concealed pantry, and top-tier appliances by Sub-Zero, ILVE, and Asco.The captivating main-level primary suite features retractable glass walls, a dual-sided fireplace casting a warm glow, expansive custom closets, and a spa-like bath with an infrared sauna, marble vanities, and indoor and outdoor steam showers. An expansive mudroom with walnut built-ins, an indoor pool and spacious gym, and a dedicated office create a seamless blend of functionality and luxury on the main floor. Upstairs, three additional en-suite bedrooms offer private retreats, each a haven of bespoke design. The lower level is an entertainer's dream, boasting a state-of-the-art home theater with a 13.5' Stewart screen, plush built-in lounge seating, a refreshment area, and two additional en-suite bedrooms, plus expansive gathering spaces. Main level retractable glass doors open to a private backyard oasis, featuring a shimmering pool, an indoor/outdoor hot tub, a Lynx gas grill, and a gas fireplace. The guest house provides a private escape, featuring a living area, kitchenette, bedroom, and full bath. A 2-car attached and 3-car detached garage offer ample space for vehicles, toys, and treasured belongings. Modern amenities, including radiant heat, central AC, an Aurum smart home system, and built-in fire suppression, ensure a lifestyle of effortless comfort and security.